Valve.



UNITED; ,sTAfrEs PATENT OFFIGE;'

Specification of Letters Patent.

Patented #1113724, 19 06.

ma 8 June 16,1966. seal it). 265.627.

To all whom it may concern:

' Be it known that I, WILL'IAM R. TEMPLE- TON, acitizen of the UnitedStates, and a resident of Boston, county of Suflolk, State ofMassachusetts, have invented an Improvement in Valves, of which thefollowing,

description, in connection'with the accompanying drawings, is aspecification, like numerals on the drawings representing like parts.

This invention relates to valves for steam, water, or other fluid; andit has for its object the production of a novel valve-seat which can beremoved or replaced without disturbing the valve-shell in its fixedposition in steam or other connections and so constructed and arrangedthat the pressure of the fluid passing through the valve-seat acts toforce the valve-seat tightly in place and maintain it tight. 7

Removable valve-seats have been heretofore devised, usually in thenature of a ring or collar which is externally threaded to screw into aninternally-threade valve port or opening within the valve-shell; butconsiderable difliculty has been experienced in keeping the valve-seattight in its place.

The variations of temperature of the valveseat and the part on which itis mounted tend to loosen the seat and permit leakage around thevalve-seat, so that the valve as a whole is not as efficient as itshould be.

In accordance with my presentinvention I have provided simple andeflective means whereby the ressure of the fluid passin through the vave-seat when open causes sair valve-seat to tighten automaticall on itssupport and remain tight under a1 conditions of use.

The novel features of my invention will be fully described in thesubjoined specification and particularly pointed out in the followingclaims. A

Figure 1 is a view of an ordinary globevalve embodying my invention, thevalveshell and valveseat being shown in section and the bonnet and'valvein elevation, the

valve being raised to avoid confusing the drawing; and Fig. 2 is a topplan. view of my im roved valve-seat detached.

he valve-shell 1 of ordinary construction ilsflprovided with the usualwall 2 between the st and outlet ports. of the shell, andthe valve portor opening is internally threaded at-3 for the removable valve-seat.

The bonnet 4, threaded to engage the threaded-nipple 5 of the shell, thevalve 6, valve spindle 7, and hand-wheel 8 attached thereto, and thepreferably non-metallic facing-Q- of the valve may be and are all ofwell- .known constructio'm-the spindle 7 being'rotatable andlongitudinally movable in the gland 10, as usual, to open or close thevalve.

In accordance with my invention 'the' removable valve-seat is made as aring or collar 11, externally threadedat 12, Fig. 1, to screw into thethreaded port at 3, the upper end of the ring having alaterally-enlargedannular flange 13, which projects over and rests uponthe circular lip 3 of the port, said flange forming the valve-seatproper.

Upon the interior of the valve-seat I form one or more diagonal ribs orprojections 14;,

(clearly shown in the drawings,) and preferably a plurality of such ribsare employed,-

two being shown in Fi 2 but the number of such ribs is immateria, I

' he ribs are so inclined with relation to the thread on the valve-seatthat pressure upon the ribs inthe direction of arrow 15, Fig. 1, willtend to rotate the valve-seat in a direction to set up or tighten thesamein the port, the greater the pressure of the fluid passing throughthe valve-seat the greater the power with which it is tightenedand-maintained tight.

fluid passing through when the valve is open.

No packing is required to prevent leakage will be to tighten thevalve-seat automaticall i T e removable seat can be inserted and screwedup by the fin ers, if desired, as the tightening will therea ter becompleted by the fluid-pressurep/but the ribs also afford a hold for aflat metal tool if it be desired to set up the seat by hand and alsofacilitate its removal it hot or if it should become very tightly heldin the port.

My invention is not restricted to the particular form of valve hereinshown nor to the recise details of construction herein shown, or thesame may be. modified in diflerent particulars without departing fromthe spirit and scope of my invention.

Having fully described my invention, what diagonal rib on the interiorof the valve-seat,

having a threaded valve port or opening, of

passing therethrough.

.pressureof fluid passing therethrough.

an annular, externally-threaded valve-seat 5 adapted to be screwed intosaid port, and means on the valve-seat to automatically' tighten it inthe port by the action of fluid passing therethrough.

2. The combination, with a valve-shell an annular, externally-threadedvalve-seat adapted to be screwed into said port, and means tending torotate and tighten the valve-seat in the port by the action of fluid 3.The combination, with a valve-shell, of an annular valve-seat removablymounted therein, and meanson the interior of the valve-seat to retainthe same in place by the A. The combination, with a valve-shell having athreaded valve port or opening, of an annular, externally-threadedvalve-seat adapted to be screwed into said port, and a to be acted uponby the fluid passing through said seat and acting to tighten the same inthe Dort.

tion of the valve-seat in the port by the action of the fluid on theribs.

6. A valve-shell having an internallythreaded valve port or opening, aremovable ring or collar externally threaded to screw into the port andhaving a laterally-projecting annular flange forming a valve-seat, and

diagonal ribs or projections on the interior of the ring or collar, asand for the p pose set forth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses. 1

WILLIAM R. TEMPLETON.

l/Vitnesses:

JOHN C. EDwAnns, ELIZABETH R.,MORRISON.

